Car-truck.



H. M. PPLAGER.

GAR TRUCK.

APPIQIOATION FILED APR. 21, 1913.

Patented July 29, 1913.

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GAR TRUCK Patented July 29, 1913.

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Trucks, of which the following is a full,

' 'rarns arana orricn HARRY M. PFLAGER, OF ST. LOUIS,'MISSOURI, ASSIGNORTO DOUBLE BODY BOLSTER COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATION OFNEW JERSEY.

CAR-TRUCK.

Specification of Letters Patent.

To all whom it may concern:

Be it known that I, HARRY M. PFLAGER, a citizen of the United States,residing at St. Louis, Missouri, have invented a certain new and usefulImprovement in Carclea-r, and exact description, such as will enableothers skilled in 'the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, forming part ofthis specification, in Wl'llChi I Figure 1 is a plan view of a -sixwheel truckof my improved construction, Fig. 2 is. a sectional Viewtaken approximately 011 the line 22 otFig. 1. Fig. 3 is a crosssectional View takenapproxi nately on the line 33 of" Fig. 1. Fig. 4 isa detail sectional view taken approximately on the line 4-4'of- Fig.1. 7

My. invention relates generally to car trucks, and more particularly toa six wheel truck designed and adapted for use in connection withlocomotive tenders, and where only a short wheel base truck canbe used.

The principal objects of my invention are,

ter bolster member which is narrower in width than the truck frame sothat it lies Wholly between the' wheel pieces of the truck frame;second, to provide a truck center bolster having parts adapted to formside hearings or to receive side hearing members, which parts arelocated inside the wheel pieces of the truck frame; third,- to combinewith the center bolster acenter bearing plate; fourth, to support thecenter bolster from the truck frame by meansof hangers arranged so as topermit the bolster member to swing transversely relative to the truckframe, and fifth to provide a'center bolster member, the central portionof which practically straddles the center axle of the truck With theabove and other objects in view,

my invention consists in certain novel fea tures of construction andarrangement of parts hereinafter more tully' describedand claimed. y

In the construction ofmy improved truck as illustrated the truck frame,comprising wheel pieces 10 and transoms 11, is shown as being I formedintegral, preferably by casting, but it will be readily understood thatthese parts can be formed separate and fixed to each other inany'suitable manner. The wheel pieces and transoms are substanplan, andis preferably cast in a single piece. The transversely disposedy centermember 1%1 of this bolster is substantially of inverted U-shape in crosssection and practi cally straddles the center axle of the truck.

Formed integral with the lower edges of the- Patented July 2a, 1913.

tially hollow, or box-shaped in cross secside walls or webs of thiscenter member I are outwardly projecting strengthening flanges 15, andformed integral with the upper and central portion of the member 14' 1sa horizontally disposed plate 16 which is king pin opening 18 is formethrough the central portions-of the plates 16 and 17. The center bearingplate 17 is preferably made separate trorn the plate 16- in order thatsaid center bearing plate can be removed when it has become unfit forservice,

although, if desired, said center bearing plate canbe cast integral withthe plate 16. Where the center bearing plate is made separate, the plate16 is preferably provided Ton or near its edges with upstanding flanges16 which serve as bearings for the edges of the center bearing plate totake the shearin 0' strains oflthe rivets or like devices utilized 1 forfastening the center bearing plate to the 'bojlster member.

, The ends of the' nember 14 terminate inside or short of the wheelpieces 10, and formed'integral with or fixed to the end portions of saidmember 14 are the brackets or extension's lll whichlie parallel with thewheel pieces 10, and the outer ends of' these adapted to receive acenter bearin plate 17. first, to combine with a truck. frame a cen-, A

extensions or brackets occupy positions he neath the transoms 11.'Pivotally connected to the end portions of the. GXtGDSIOHS orbrackets'l9 are the lower ends of swing hangers 20, the same extendingupward 'through suitable openings in the'transoms 11,.and the uppcr'endof each swing hanger is prefcrablyprovided with two bearing points orpoints of pivotal connection with the transom.

Formed through the member l l near its ends are horizontally disposedapertures 21 which are adapted to receive parts ofthe brake rigging, asshown by dotted 1ines'.in Fig. 1. Formed on or fixed to the ends of themember 14 are upwardly and outwardly projecting brackets 22, and theouter ends 23 of these brackets occupy positions above and adjacent tothe tops of the wheels on the center axle of the truck. The top surfacesof the end portions 23 perform the functions of the truck bolster sidebearings which cooperate with corresponding side bearings,

or hearing members carried by the body bolster. (See dotted lines Fig.3.)

Ifdesired suitable sid" bearing plates or members maybe detachablyapplied to the ends-2 3 of the extensions or brackets 22.

,Suitable gusset plates and reinforcing flanges 2a are formed betweenthe plate 16, extensions 19v and brackets 22.

' Ii'r'my' improved truck it will be'noted as they are spacedapart adistance less than i the space between the wheels or track rails,

andfor this reason the load carried by thebolster will, at all times, bedistributed upon all of the wheels of the truck and there will be verylittle, if any, tendency of-one side ofthe truck to raise by reason of apreponderance of weight upon the opposite side, as,

for instance, where side bearings are arranged outside the wheel piecesof the truck and the weight of the tender bears down on one end of thecenter bolster, as is the case in rounding curves or by reason of adepression in one of the track rails.

A truck of my improved construction is comparatively simple, is composedof a 'land outward over the center wheels truck minimum number of parts,and by extending the ends of the center bolster upward ment isespecially desirable in all'trucks, and particularly those utilizedbeneath locomotive tenders.

It will be readily understood that minor changes in the size, form andconstruction of the various parts of my improved car truck can be madeand substituted for those herein shown and described without depart-'-nate adjacent to and above the tops of the center wheels of the truck.

2.'In a: six wheel truck for railway cars,

thereby, the ends of which center bolster terminate inside the wheelpieces of the a truck frame and above the tops of the. center wheels ofthe truck.

3. In a six wheel-truck for railway cars, a truckframe, a centerbolstersupported thereby, the ends of which center bolster terminate inside thewheel pieces of the truck frame, and are provided with side bearings,and a center bearing plate on the central portion of said bolster.

. 4. .In 'a six wheel truck for railway cars, a truck frame, an H-shapedcenter bolster, lying wholly within the lines of truck frame, and sidebearings on said center bolster:

5. In a six wheel truck for railway cars,

thereby, the central portion of which bolster is substantially ofinverted U-shape in cross 'side the wheel pieces of the truck frame.

6. In a sixwheel truck for railway cars, a truck frame, a center bolstersupported thereby, side hearings on the bolster inside the wheel piecesof the truck, and a detachable center bearing on said center bolster.

7. In a six wheel truck for railway cars, a truck frame, a substantiallyH-shaped center bolster lyin wholly within the lines of tral member" ofwhich bolster straddles the central axle of the truck and the endportions of which center member are provided 'with side bearings.

.8. In a six wheel-par truck, a center bolster having its end portionsextended upward and outward above'the tops of the wheels of the centeraxle 'to form side bearings.

9. In a six wheel car truck, a center, bolster having its end portionsextended upward and outward above the tops of the wheels of the centeraxle to form side bearings, and a center bearing on said center bolster.v

10. In a six wheel truck for railway cars, a truck frame, asubstantially H-shaped center bolster, swing links from the truck frame'to the eri'ds of the legs of the center bolster,

and sideft ibearings on said bolster.

ter bolster, swing links from the truck frame tended upwardly andoutwardly and termi- 1 a truck frame and a center bolster supported atruck frame, a center bolster supported section, and side bearingsonsaid bolster insaid frame, an supported thereby, the cen- 11. Ina sixwheel truck for railway cars, 7 a truck frame, a substantially H-shapedcento the ends of the legs of the center bolster, and side and centerbearings on said bolster.

12. In a six wheel truck for railway cars,

a truck frame, a substantially H-shaped cen ter. bolster, located"wholly within the lines of the truck frame, the central member of whichcenter bolster 'is' arranged. above the oenter axle of the truck, andside bearings on said center bolster.

- 13. Ina six wheel truck for railway cars,

a truck frame, a substantially H-shaped cen-' ter bolsterlocated whollywithin the-truck frame, the central member 0fwhich center bolster isarranged above the center axle of the truck, andside bearings and acenter- 'plate on said bolster.

14. In a sixwheel truck for railway cars,

a truck frame having bolsters, a center b01- ster arranged wholly withinthe truck frame, the end portions of which center bolsterare extendedupward and outward to form side bearings, and parts of which centerbolster extend beneaththe truck frame transoms,

and hangers from the truck frame transoms signature in the presence oftwo witnesses,

this 18th day of April, 1913. v v

- HARRY M. PFLAGER; WVitnesses: 3

CHARLES S. SHALLENBERGER, HAL C. BELLVILLE.

